<?php

/**
 * Render a field as a numeric value
 *
 * Definition terms:
 * - float: If true this field contains a decimal value. If unset this field
 *          will be assumed to be integer.
 *
 * @ingroup views_field_handlers
 */
class views_handler_field_numeric extends views_handler_field {

    function option_definition() {
        $options = parent::option_definition();

        $options['set_precision'] = array('default' => FALSE);
        $options['precision'] = array('default' => 0);
        $options['decimal'] = array('default' => '.', 'translatable' => TRUE);
        $options['separator'] = array('default' => ',', 'translatable' => TRUE);
        $options['format_plural'] = array('default' => FALSE);
        $options['format_plural_singular'] = array('default' => '1');
        $options['format_plural_plural'] = array('default' => '@count');
        $options['prefix'] = array('default' => '', 'translatable' => TRUE);
        $options['suffix'] = array('default' => '', 'translatable' => TRUE);

        return $options;
    }

    function options_form(&$form, &$form_state) {
        parent::options_form($form, $form_state);

        if (!empty($this->definition['float'])) {
            $form['set_precision'] = array(
                '#type' => 'checkbox',
                '#title' => t('Round'),
                '#description' => t('If checked, the number will be rounded.'),
                '#default_value' => $this->options['set_precision'],
            );
            $form['precision'] = array(
                '#type' => 'textfield',
                '#title' => t('Precision'),
                '#default_value' => $this->options['precision'],
                '#description' => t('Specify how many digits to print after the decimal point.'),
                '#process' => array('views_process_dependency'),
                '#dependency' => array('edit-options-set-precision' => array(TRUE)),
                '#size' => 2,
            );
            $form['decimal'] = array(
                '#type' => 'textfield',
                '#title' => t('Decimal point'),
                '#default_value' => $this->options['decimal'],
                '#description' => t('What single character to use as a decimal point.'),
                '#size' => 2,
            );
        }
        $form['separator'] = array(
            '#type' => 'textfield',
            '#title' => t('Thousands separator'),
            '#default_value' => $this->options['separator'],
            '#description' => t('What single character to use as the thousands separator.'),
            '#size' => 2,
        );
        $form['format_plural'] = array(
            '#type' => 'checkbox',
            '#title' => t('Format plural'),
            '#description' => t('If checked, special handling will be used for plurality.'),
            '#default_value' => $this->options['format_plural'],
        );
        $form['format_plural_singular'] = array(
            '#type' => 'textfield',
            '#title' => t('Singular form'),
            '#default_value' => $this->options['format_plural_singular'],
            '#description' => t('Text to use for the singular form.'),
            '#process' => array('views_process_dependency'),
            '#dependency' => array('edit-options-format-plural' => array(TRUE)),
        );
        $form['format_plural_plural'] = array(
            '#type' => 'textfield',
            '#title' => t('Plural form'),
            '#default_value' => $this->options['format_plural_plural'],
            '#description' => t('Text to use for the plural form, @count will be replaced with the value.'),
            '#process' => array('views_process_dependency'),
            '#dependency' => array('edit-options-format-plural' => array(TRUE)),
        );
        $form['prefix'] = array(
            '#type' => 'textfield',
            '#title' => t('Prefix'),
            '#default_value' => $this->options['prefix'],
            '#description' => t('Text to put before the number, such as currency symbol.'),
        );
        $form['suffix'] = array(
            '#type' => 'textfield',
            '#title' => t('Suffix'),
            '#default_value' => $this->options['suffix'],
            '#description' => t('Text to put after the number, such as currency symbol.'),
        );
    }

    function render($values) {
        $value = $values->{$this->field_alias};
        if (!empty($this->options['set_precision'])) {
            $value = number_format($value, $this->options['precision'], $this->options['decimal'], $this->options['separator']);
        } else {
            $remainder = abs($value) - intval(abs($value));
            $value = $value > 0 ? floor($value) : ceil($value);
            $value = number_format($value, 0, '', $this->options['separator']);
            if ($remainder) {
                // The substr may not be locale safe.
                $value .= $this->options['decimal'] . substr($remainder, 2);
            }
        }

        // Check to see if hiding should happen before adding prefix and suffix.
        if ($this->options['hide_empty'] && empty($value) && ($value !== 0 || $this->options['empty_zero'])) {
            return '';
        }

        // Should we format as a plural.
        if (!empty($this->options['format_plural'])) {
            $value = format_plural($value, $this->options['format_plural_singular'], $this->options['format_plural_plural']);
        }

        return filter_xss($this->options['prefix']) . check_plain($value) . filter_xss($this->options['suffix']);
    }

}
